[Investigations on tribology and strength of aluminium-oxide-ceramic--hip endoprostheses (author's transl)].

The nature of friction and wear of ceramic material and ceramic hip endoprostheses by different manufacturers has been investigated by means of model test equipment and gait-simulators. Thus the aptitude of ceramics to be frictional partners for artificial joints can be attested, the results give the hope of a long usability. Anyway there is the demand to the manufacturers to give a garantee for the breaking strength of the cone--plug-in-connexion and a highest productional quality of the sliding faces. The long-term testings are carried on.